STERI-FLO® UV STERILIZERS
ULTRAVIOLET EFFECTIVENESS* |
BACTERIA |
| Bacillius anthracis |
8,700 |
| Dysentary bacilli |
4,200 |
| Esherichlia coli |
6,600 |
| salmonella |
10,500 |
| Shigella dysenteriae (dysentary) |
4,200 |
| Eberthella typosa |
4,100 |
| Streptococcus faecaila |
10,000 |
| Legionella pneumophila |
12,300 |
PROTOZOA |
| Chlorella vulgaris (algae) |
22,000 |
| Blue-green algae |
420,000 |
| Bacteriophage (E.Coli) |
6,600 |
| Giardia lamblia (cysts) |
100,000 |
| *Amount of ultraviolet energy necessary for destruction of organisms measured in µws/cm2 |
STERI-FLO® STERILIZER
The filtration and deep-bed carbon adsorption of Filtrine's particulate filters provide the water clarification needed for effective UV radiation. This greatly improves the efficiency of the ultraviolet radiation because it eliminates shadows caused by turbidity in the water. The ultraviolet rays, in concentrated doses, break through the other cell walls of waterborne micro-organisms and penetrate into the nucleus to destroy the DNA.

In Steri-Flo® sterilizers, UV radiation with a wavelength of 2,536 angstrom is produced from a low pressure mercury lamp. The lamp is encased in a special high purity quartz sleeve which is immersed in water inside of the stainless steel sterilizing chamber. By regulating the flow of water through this chamber, disease-causing micro-organisms, such as bacteria, algae, spores and viruses are exposed to a dose of at least 40,000 µW-sec/cm2 — over twice the dosage required to ensure safe drinking water.
UV STERILIZATION... AN ALTERNATIVE TO CHLORINE
Steri-Flo® unltraviolet sterilizers kill bacteria without chlorine or other chemicals and therefore have no cancer-causing by-products. They are recommended as an alternative to chlorine treatment for rural homes on well systems as well as added protection for hospitals, office building, etc. where cyrptosporidium and other micro-organisms may be retained in the biol-film on the walls of city water mains.